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Insulating Joint
Insulating joints from Shanghai Changhao High Pressure Pipefittings Co.,ltd are critical pipeline components designed to provide electrical isolation in oil, gas, and water systems. These fittings feature carbon steel flanges (A105 or A350) separated by a G10 or G11 glass phenolic insulating sleeve, preventing galvanic corrosion and enabling cathodic protection. They are rated for high-pressure applications, with typical class ratings up to 1500 and sizes ranging from DN15 to DN600.
The joints incorporate three key features for electrical isolation: insulating gaskets to prevent metal-to-metal contact, internal cavities filled with dielectric compound, and non-conductive epoxy coatings on inner and outer surfaces. These design elements ensure long-term reliability in demanding environments, including refineries, offshore platforms, and long-distance transmission pipelines. The carbon steel construction meets industry standards such as API 6A, ASME B16.5, and ISO 14313.
EPC contractors and pipeline operators globally source these joints for projects requiring robust electrical isolation. The fittings are compatible with a wide temperature range and resist chemical corrosion, making them suitable for use in chemical processing plants, power stations, and water treatment facilities. Buyers should confirm size, pressure class, and material specifications with Shanghai Changhao High Pressure Pipefittings Co.,ltd to match project requirements.
| Material | Carbon Steel A105 or A350 |
| Insulating Sleeve Material | G10 or G11 Glass Phenolic |
| Size Range | DN15 to DN600 |
| Pressure Class | Up to Class 1500 |
| Typical Temperature Range | -50°C to 200°C (typical) |
| Dielectric Strength | ≥ 2000 V AC (typical for G10/G11) |
| Coating | Two coats of non-conductive epoxy paint (standard) |
| Internal Cavity Filling | Special dielectric compound |
| Flange Standard | ASME B16.5 or API 6A (typical) |
| Application | Oil, gas, water pipelines and cathodic protection systems |
Shanghai Changhao High Pressure Pipefittings Co.,ltd is located in Pudong New District, Shanghai, at No.2 Building of Shanghai Zhicheng, No.8666 Hunan Rd, 201314. The company specializes in high-pressure pipe fittings, including insulating joints, for industrial applications such as oil, gas, and water pipeline systems. Its products are designed to meet stringent international standards, ensuring reliability in critical infrastructure projects.
The supplier holds a harbor trust tier, indicating a verified profile for international trade. While the current response rate is 0.00, buyers are advised to contact the company directly for technical specifications and project inquiries. Shanghai Changhao High Pressure Pipefittings Co.,ltd focuses on delivering components that support electrical isolation and cathodic protection, catering to EPC contractors and pipeline operators worldwide.
Insulating joints (also called isolation couplings) are critical components in oil, gas and water pipeline systems where electrical isolation is required to prevent galvanic corrosion and enable effective cathodic protection. These fittings typically feature steel flanges separated by a high-dielectric insulating sleeve and gasket kit, rated for pressures up to Class 1500 and sizes from DN15 to DN600. Widely used in refinery, offshore platform and long-distance transmission pipeline projects, they are essential procurement items for EPC contractors and pipeline operators globally. Typical standards include API 6A, ASME B16.5 and ISO 14313.
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Sourcing Insulating Joint from Shanghai Changhao High Pressure Pipefittings Co.,ltd - China Import Guide
Before ordering, verify the dielectric strength and pressure ratings of the joints to ensure they meet your pipeline’s electrical isolation and mechanical requirements. Request third-party certifications for compliance with API 6A or ASME B16.5, as these are essential for project approvals and safety.
Confirm logistics details, including packaging for high-pressure fittings, container loading constraints, and preferred Incoterms. Discuss lead times with Shanghai Changhao High Pressure Pipefittings Co.,ltd, as custom sizes or pressure classes may require additional production time. Ensure the supplier can provide the necessary documentation for customs clearance.
Upon delivery, inspect the joints for dimensional accuracy, coating integrity, and the presence of the insulating sleeve and gaskets. Perform random dielectric strength tests to confirm electrical isolation performance. Request material test certificates (MTCs) and compliance documentation to validate quality and traceability for your project.
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30 suppliersBuy Insulating Joint in Bulk — Supplier in China
When sourcing Insulating Joint for your business, securing the right balance of quality and cost is essential. Shanghai Changhao High Pressure Pipefittings Co.,ltd, a supplier based in China, offers this product with key specifications including Insulating Joint / Isolation Coupling, ASME Class 150 to Class 2500 / PN20 to PN420, and DN25 to DN1200 (1" to 48"). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $20/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7307.93, making it a staple in the Metal Products sector with strong demand from importing countries worldwide.
Insulating Joint Specifications, Trade Terms & Pricing
Importing Insulating Joint requires careful attention to shipping logistics, customs compliance, and secure payment terms. Shanghai Changhao High Pressure Pipefittings Co.,ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7307.93 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading online B2B marketplace designed to make cross-border trade secure and efficient.
About Shanghai Changhao High Pressure Pipefittings Co.,ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Insulating Joint for business registration and quality documents before ordering. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of manufacturers and exporters across 200+ countries. Explore similar products in the Metal Products category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import Insulating Joint — Shipping, Logistics & Customs
Importing Insulating Joint requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 7307.93 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Insulating Joint
What is the wholesale price of Insulating Joint?
The current listed wholesale price for Insulating Joint from Shanghai Changhao High Pressure Pipefittings Co.,ltd is $20/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Shanghai Changhao High Pressure Pipefittings Co.,ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for Insulating Joint?
The supplier, Shanghai Changhao High Pressure Pipefittings Co.,ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Insulating Joint. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Insulating Joint?
For international shipping and customs clearance, Insulating Joint is classified under HS Code 7307.93. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Insulating Joint from China?
To import Insulating Joint from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Shanghai Changhao High Pressure Pipefittings Co.,ltd. Ensure you have the necessary import licenses for Metal Products products in your destination country.
How can I check Shanghai Changhao High Pressure Pipefittings Co.,ltd before ordering?
Open the Shanghai Changhao High Pressure Pipefittings Co.,ltd company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
What are the key specifications of Insulating Joint?
The key specifications for Insulating Joint supplied by Shanghai Changhao High Pressure Pipefittings Co.,ltd include Insulating Joint / Isolation Coupling, ASME Class 150 to Class 2500 / PN20 to PN420, and DN25 to DN1200 (1" to 48"). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Insulating Joint?
Shanghai Changhao High Pressure Pipefittings Co.,ltd offers Insulating Joint with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Insulating Joint the most?
Insulating Joint is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Shanghai Changhao High Pressure Pipefittings Co.,ltd through our platform.
What certifications does this Insulating Joint supplier hold?
Shanghai Changhao High Pressure Pipefittings Co.,ltd maintains international quality certifications. These ensure that the Insulating Joint meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Insulating Joint on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Shanghai Changhao High Pressure Pipefittings Co.,ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Shanghai Changhao High Pressure Pipefittings Co.,ltd.
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